png_data -- Data as images

png_embed -- Embed files into mostly innocent PNG

Current algorithm:

• lo Embeds data in the colors channels lowest bits.

See examples/test.sh for usage.

Encoding an image

png_embed -l lo2 -e embed.tar original.png -o output.png Where:

• lo2 is the Lo algorithm using the 2 lowests bits
• embed.tar the file to embed into the final image
• original.png the original PNG file
• output.png the resulting PNG file

Decoding an image

png_embed -l lo2 -d image.png -o embed.tar Where:

• lo2 is the Lo algorithm using the 2 lowests bits
• image.png the PNG containing an embed
• embed.tar the extracted embedded file

License

NML is licensed under the GNU AGPL version 3 or later. See LICENSE.md for more information. License for third-party dependencies can be accessed via cargo license